Difference between revisions of "Leptostomopsis nivea"

(Bescherelle) J. R. Spence

Phytologia 91: 498. 2009.

Selected by author to be illustrated
Basionym: Brachymenium niveum Bescherelle
Treatment appears in FNA Volume 28. Treatment on page 147. Mentioned on page 10, 127, 148.
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|elevation=moderate elevations (1000-1200 m)
 
|elevation=moderate elevations (1000-1200 m)
 
|distribution=Ariz.;Mexico;Central America.
 
|distribution=Ariz.;Mexico;Central America.
|discussion=<p>Leptostomopsis nivea was recently collected from two locations in southeastern Arizona, and the plants are very small for the species. One collection consisted of scattered plants in sandy calcareous soil along the edge of the Wilcox Playa, an unusual habitat for this species. This species occurs on trunks of trees or rarely on dry rock. It is reminiscent of Bryum argenteum, but the yellow cast, thick-walled, somewhat sinuate distal laminal cells, long awn, and serrate margins of the distal portions of the leaves easily distinguish this species.</p>
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|discussion=<p><i>Leptostomopsis nivea</i> was recently collected from two locations in southeastern Arizona, and the plants are very small for the species. One collection consisted of scattered plants in sandy calcareous soil along the edge of the Wilcox Playa, an unusual habitat for this species. This species occurs on trunks of trees or rarely on dry rock. It is reminiscent of <i>Bryum argenteum</i>, but the yellow cast, thick-walled, somewhat sinuate distal laminal cells, long awn, and serrate margins of the distal portions of the leaves easily distinguish this species.</p>
 
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|references=
 
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|publication year=2009
 
|publication year=2009
 
|special status=Selected by author to be illustrated
 
|special status=Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V28/V28_236.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V28/V28_236.xml
 
|genus=Leptostomopsis
 
|genus=Leptostomopsis
 
|species=Leptostomopsis nivea
 
|species=Leptostomopsis nivea

Revision as of 18:04, 18 September 2019

Plants in dense cushions, turfs, or gregarious, pale yellow-silver. Stems 0.4–0.8 cm. Leaves erect to erect-spreading when moist, broadly ovate, somewhat concave, 0.2–1 mm; margins serrate near apex, limbidium present distally; apex acute, hyaline; costa long-excurrent, awn hyaline, straight to weakly recurved when dry; distal laminal cells hyaline, rhomboidal to almost vermicular, 30–40 µm, 4–6:1, walls thick, somewhat sinuate. [Capsule oblong, 2–3 mm; hypophysis slender, inconspicuous to somewhat well differentiated, sometimes expanded and rugose. Spores 20–23 µm].


Habitat: Dry volcanic rock, sandy soil, Madrean pine-oak woodlands in canyons, open playa edges
Elevation: moderate elevations (1000-1200 m)

Distribution

V28 236-distribution-map.gif

Ariz., Mexico, Central America.

Discussion

Leptostomopsis nivea was recently collected from two locations in southeastern Arizona, and the plants are very small for the species. One collection consisted of scattered plants in sandy calcareous soil along the edge of the Wilcox Playa, an unusual habitat for this species. This species occurs on trunks of trees or rarely on dry rock. It is reminiscent of Bryum argenteum, but the yellow cast, thick-walled, somewhat sinuate distal laminal cells, long awn, and serrate margins of the distal portions of the leaves easily distinguish this species.

Selected References

None.

Lower Taxa

None.
... more about "Leptostomopsis nivea"
John R. Spence +
(Bescherelle) J. R. Spence +
Brachymenium niveum +
Ariz. +, Mexico +  and Central America. +
moderate elevations (1000-1200 m) +
Dry volcanic rock, sandy soil, Madrean pine-oak woodlands in canyons, open playa edges +
Selected by author to be illustrated +
Leptostomopsis nivea +
Leptostomopsis +
species +